Spectral Tower is one of the first Playstation games, and one of Idea Factory's earlier works. It's a dungeon crawler RPG with a very old school feel. Like Gauntlet, you have to find a key before being able to open the door to the next level. Like pen and paper RPGs, hits in battle are determined by dice rolls.
When you start the game, you get to name your adventurer hero and then input some numbers. The numbers will determine which character class you will be. You can go back and change the numbers to get a different class. Not entering any numbers gives you the special(?) "Fool" class.
Items found in the game can be used to restore health, boost stats, and even skip levels.